For shooting a lot of rounds and the availability of surplus ammunition the Kalash in 7.62X39would be the choice. And as you stated WHY!! in this rile platform not being a precision rifle to start with. Although my AR shoot 1 MOA groups and sometimes less in 6.5 Grendel and it is an 18" barrel. It is a very accurate caliber.
But actually the 6.5 Grendel Ballistics is much better than the 7.62X39 ballistics wise. Some even use them to shoot 1000 yards. And from our experience in Texas the 6.5 Grendel does a better job on Deer believe it or not. I have never shot a deer with that caliber that did not go down after the first shot. But on several occasions there were multiple shots needed to put one down with the 7.62X39 at ranges over 150 yards. Both are good calibers for the purpose but personally I would choose the 6.5 over the 7.62. Maybe not in a Kalash model though! Actually I was advised that some of the guys are using 7.62X39 Brass and forming it to the 6.5 Grendel ammunition they reload. Of course now there is ample brass available for the 6.5 and it is easy to load.
Also the accuracy as I stated is to say the least phenomenal. I guess it is up to what the guy wants to do with it.
Here is a chart I found.
The Constitution is not an instrument for the Government to restrain the people. It is an instrument for the people to restrain the Government!
“Americans have the right and advantage of being armed. Unlike the people of other countries, whose leaders are afraid to trust them with arms.”
James Madison. Author of the 2nd Amendment
Last edited by Sniper03; 01-02-2016 at 08:52 PM.